Adapter plate



FIG. 1 is a front perspective view showing my new design;

FIG. 2 is a rear perspective view;

FIG. 3 is a top view;

FIG. 4 is a front view, rear view is mirror image thereof;

FIG. 5 is a left side view; right side view is a mirror image thereof; and,

FIG. 6 is a bottom view. 

The ornamental design for adapter plate, as shown and described. 